Boom2:Volume Boost & Equalizer 4+

The Best Audio Enhancer

Global Delight Technologies Pvt. Ltd

    • 4.0 • 844 Ratings
    • Free
    • Offers In-App Purchases



Boom 2 is an award-winning pro audio app that gives you finer, higher precision control over all the audio on your Mac, with a cutting-edge 31 band equalizer, an unbeatable volume booster, and a host of unique features for a pristine stereo sound experience.

Features that truly enrich the sound experience on your Mac:

A Personalized Stereo Sound Experience with the Advanced 31-Band Equalizer
The state-of-the-art higher fidelity equalizer gives you complete control to adjust every minute detail of the audio, to make the stereo experience truly unique and exactly the way you want it to sound.

Experience Powerful Sound with the Volume Booster
Increase the volume beyond your system’s regular limit to enjoy the true power of sound.

Crafted Audio Effects, to Shape Your Sound
Breathe new life into your sound, by adding ambience, increasing fidelity, shifting the pitch, and more.

Superior Stereo Sound Control
Increase the width of the stereo field and adjust the balance of the left and right channels, with the easy-to-use interface.

Additional features

Sample Rate Control:
Adjust the sample rate of the output device for pristine audio rendering, on higher-end audio devices.

File Boosting:
Boost the audio to an appropriate level in your music or video files, individually, or in batches.

Wireless Control:
Access Boom 2 from anywhere within your house or at work with the ‘Boom Remote’ app installed on your iPhone and iPad.

NOTE: Boom 2 does not work when AirPlay and FaceTime is enabled/running due to a technical limitation on macOS.

"Boom remains a must-have utility for me on my Mac laptop, and its improvements make it all the better." - Serenity Caldwell, iMore

"It truly feels right at home on Apple’s new OS; almost like Apple designed it." - Owen Williams, The Next Web

Subscription Terms: ( Applicable to iTunes subscription packs) Boom 2 is free to download on the iTunes Store with a free trial period of 7 days! Boom 2/ is available by auto-renewable subscriptions for 1 year and 6 months.
- Your credit card will be charged through your iTunes Account after the purchase confirmation.
- Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period.
- Your iTunes Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.
- You can manage your subscriptions and you may turn off the auto-renewal by going to the your iTunes Account Settings after purchase.
- No cancellation of the current subscription is allowed during active subscription period.

Terms of Service:

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What’s New

Version 1.7.13

- Discover our apps: Explore our other app offerings from within Boom 2 (on the left, side bar of Boom 2 window)
- Defect fixes and improvements: Your listening experience is our top priority, and we have deployed some defect fixes to improve it.

Ratings and Reviews

4.0 out of 5
844 Ratings

844 Ratings

Big Fat Homosapien ,

Significant latency prevents use in conferencing

: This app offers an audio equalizer for improving sound from any audio source. Further, it offers various room models to layer on (i.e. to introduce some amount of reverb to emulate various environments). These functions works quite well.

0: Saving your own equalization setting is a little clunky -- you need to select one of the custom settings, click the green check mark, and then click "New" to create your own. A cleaner solution would be to allow you to directly enter a name of your choice and asking if you want to create or overwrite.

-- This app introduces significant (~2 second) latency into the audio stream so it cannot be used in web conference applications (Zoom, Webex etc) where it would be very useful for making the speech more understandable. There should be some minimalist equaliezr mode that also minimizes latency. In theory there's no reason this can't be done.

Developer Response ,

Hi there, we would appreciate some more information about the issue and the details of your device. Hence it would be helpful if you could write to us at Awaiting your response.

Double Klondike ,

I Can’t Imagine Living Without This App!

It was always frustrating to hear some low level voices when I was listening to Podcasts on my Macbook Pro and walked away to do other things. And, as might be expected, music sounded tinny, but I didnt want to invest in computer speakers since my laptop is my 2nd floor computer and there isn’t a lot of room where I use it. This app has resolved both volume level for Podcasts and improved the quality of music when I want to listen to Apple Music while I work. I agree with the other reviewer who says it should be included or recommended with the purchase of every Mac. Most of us have quality speakers and/or headphones for serious music appreciation/listening. But the choice of putting on headphones or purchasing redundant and pricey speakers for multiple areas of our workspace or homes where use our laptops is neither possible nor practical. Boom 2 fills that vast void between low volume/ tinny sound; and Audiophile quality. Not only does the spoken word sound richer, clearer, with amplified volume, but Boom 2 also adds enough quality to music to make it enjoyable. Being able to adjust the EQ for each, makes a huge difference. Thank You!

SW-1 ,

New problems cause me to question this app

I purchased a pair of Audioengine A6's for my home office, for use with my MacBook Pro. I wasn't real happy with the sound at first. I used the equalizer on Apple Music to adjust the sound to my liking, but, when I switched to a high definition streamer, it did not have a built in equalizer. So, I bought this. Boom calibrated the sound automatically, which I normally don't like, preferring to do it myself, but, the sound was great. So, now I am very happy with the speakers and with Boom.

That was my review. Oddly, right after I submitted that review, I started having problems, after trouble free use for about a year. Now it will sometimes not allow sound at all, with no explanation, and has, a few times, picked up a short loop from a song and become stuck on it. I have uninstalled and reinstalled, with no help. So, until these bugs get fixed, I can't recommend this app. I am using it on a MacBook Pro 16. I don't know what started causing these problems.

I do notice that Boom 2 still seems to work without bugs on my mid-2012 MacBook Pro 15, but has issues on my 2019 MacBook 16.

Developer Response ,

Hi there, we will provide a test build through email with the fix for this issue. You can install the test build and write to us if the same issue persists.

App Privacy

The developer, Global Delight Technologies Pvt. Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info
  • Identifiers
  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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